21697432866

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{394829}}^1$

素因数の和:394951

約数の個数: 48

約数和(自身を含む): 48782036160

約数和(自身を除く): 27084603294

約数列:

[1, 2, 3, 6, 9, 18, 43, 71, 86, 129, 142, 213, 258, 387, 426, 639, 774, 1278, 3053, 6106, 9159, 18318, 27477, 54954, 394829, 789658, 1184487, 2368974, 3553461, 7106922, 16977647, 28032859, 33955294, 50932941, 56065718, 84098577, 101865882, 152798823, 168197154, 252295731, 305597646, 504591462, 1205412937, 2410825874, 3616238811, 7232477622, 10848716433, 21697432866]

約数ペア:

[(1, 21697432866), (2, 10848716433), (3, 7232477622), (6, 3616238811), (9, 2410825874), (18, 1205412937), (43, 504591462), (71, 305597646), (86, 252295731), (129, 168197154), (142, 152798823), (213, 101865882), (258, 84098577), (387, 56065718), (426, 50932941), (639, 33955294), (774, 28032859), (1278, 16977647), (3053, 7106922), (6106, 3553461), (9159, 2368974), (18318, 1184487), (27477, 789658), (54954, 394829)]